Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals

We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals d...
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Autor*in:	Castanheira, Mariana [verfasserIn] Doyle, Timothy B. [verfasserIn] Deshpande, Lalitagauri M. [verfasserIn] Mendes, Rodrigo E. [verfasserIn] Sader, Helio S. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations

Übergeordnetes Werk:	Enthalten in: International journal of antimicrobial agents - Amsterdam [u.a.] : Elsevier Science, 1991, 58
Übergeordnetes Werk:	volume:58

DOI / URN:	10.1016/j.ijantimicag.2021.106439

Katalog-ID:	ELV00682627X

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245	1	0	\|a Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
264		1	\|c 2021
336			\|a nicht spezifiziert \|b zzz \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
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520			\|a We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species.
650		4	\|a Carbapenem-resistant Enterobacterales
650		4	\|a CRE
650		4	\|a Non-carbapenemase-producing
650		4	\|a β-Lactam resistance mechanisms
650		4	\|a β-Lactam/β-lactamase inhibitor combinations
700	1		\|a Doyle, Timothy B. \|e verfasserin \|4 aut
700	1		\|a Deshpande, Lalitagauri M. \|e verfasserin \|0 (orcid)0000-0003-1709-1132 \|4 aut
700	1		\|a Mendes, Rodrigo E. \|e verfasserin \|4 aut
700	1		\|a Sader, Helio S. \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t International journal of antimicrobial agents \|d Amsterdam [u.a.] : Elsevier Science, 1991 \|g 58 \|h Online-Ressource \|w (DE-627)32049781X \|w (DE-600)2011829-6 \|w (DE-576)264627466 \|x 1872-7913 \|7 nnns
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912			\|a GBV_ILN_40
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912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
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912			\|a GBV_ILN_90
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912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
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912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 44.38 \|j Pharmakologie
951			\|a AR
952			\|d 58

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publishDate	2021
allfields	10.1016/j.ijantimicag.2021.106439 doi (DE-627)ELV00682627X (ELSEVIER)S0924-8579(21)00720-2 DE-627 ger DE-627 rda eng 610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Castanheira, Mariana verfasserin (orcid)0000-0003-0126-1782 aut Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species. Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations Doyle, Timothy B. verfasserin aut Deshpande, Lalitagauri M. verfasserin (orcid)0000-0003-1709-1132 aut Mendes, Rodrigo E. verfasserin aut Sader, Helio S. verfasserin aut Enthalten in International journal of antimicrobial agents Amsterdam [u.a.] : Elsevier Science, 1991 58 Online-Ressource (DE-627)32049781X (DE-600)2011829-6 (DE-576)264627466 1872-7913 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-PHARM SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.38 Pharmakologie AR 58
spelling	10.1016/j.ijantimicag.2021.106439 doi (DE-627)ELV00682627X (ELSEVIER)S0924-8579(21)00720-2 DE-627 ger DE-627 rda eng 610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Castanheira, Mariana verfasserin (orcid)0000-0003-0126-1782 aut Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species. Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations Doyle, Timothy B. verfasserin aut Deshpande, Lalitagauri M. verfasserin (orcid)0000-0003-1709-1132 aut Mendes, Rodrigo E. verfasserin aut Sader, Helio S. verfasserin aut Enthalten in International journal of antimicrobial agents Amsterdam [u.a.] : Elsevier Science, 1991 58 Online-Ressource (DE-627)32049781X (DE-600)2011829-6 (DE-576)264627466 1872-7913 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-PHARM SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.38 Pharmakologie AR 58
allfields_unstemmed	10.1016/j.ijantimicag.2021.106439 doi (DE-627)ELV00682627X (ELSEVIER)S0924-8579(21)00720-2 DE-627 ger DE-627 rda eng 610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Castanheira, Mariana verfasserin (orcid)0000-0003-0126-1782 aut Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species. Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations Doyle, Timothy B. verfasserin aut Deshpande, Lalitagauri M. verfasserin (orcid)0000-0003-1709-1132 aut Mendes, Rodrigo E. verfasserin aut Sader, Helio S. verfasserin aut Enthalten in International journal of antimicrobial agents Amsterdam [u.a.] : Elsevier Science, 1991 58 Online-Ressource (DE-627)32049781X (DE-600)2011829-6 (DE-576)264627466 1872-7913 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-PHARM SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.38 Pharmakologie AR 58
allfieldsGer	10.1016/j.ijantimicag.2021.106439 doi (DE-627)ELV00682627X (ELSEVIER)S0924-8579(21)00720-2 DE-627 ger DE-627 rda eng 610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Castanheira, Mariana verfasserin (orcid)0000-0003-0126-1782 aut Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species. Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations Doyle, Timothy B. verfasserin aut Deshpande, Lalitagauri M. verfasserin (orcid)0000-0003-1709-1132 aut Mendes, Rodrigo E. verfasserin aut Sader, Helio S. verfasserin aut Enthalten in International journal of antimicrobial agents Amsterdam [u.a.] : Elsevier Science, 1991 58 Online-Ressource (DE-627)32049781X (DE-600)2011829-6 (DE-576)264627466 1872-7913 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-PHARM SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.38 Pharmakologie AR 58
allfieldsSound	10.1016/j.ijantimicag.2021.106439 doi (DE-627)ELV00682627X (ELSEVIER)S0924-8579(21)00720-2 DE-627 ger DE-627 rda eng 610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Castanheira, Mariana verfasserin (orcid)0000-0003-0126-1782 aut Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species. Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations Doyle, Timothy B. verfasserin aut Deshpande, Lalitagauri M. verfasserin (orcid)0000-0003-1709-1132 aut Mendes, Rodrigo E. verfasserin aut Sader, Helio S. verfasserin aut Enthalten in International journal of antimicrobial agents Amsterdam [u.a.] : Elsevier Science, 1991 58 Online-Ressource (DE-627)32049781X (DE-600)2011829-6 (DE-576)264627466 1872-7913 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-PHARM SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.38 Pharmakologie AR 58
language	English
source	Enthalten in International journal of antimicrobial agents 58 volume:58
sourceStr	Enthalten in International journal of antimicrobial agents 58 volume:58
format_phy_str_mv	Article
bklname	Pharmakologie
institution	findex.gbv.de
topic_facet	Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations
dewey-raw	610
isfreeaccess_bool	false
container_title	International journal of antimicrobial agents
authorswithroles_txt_mv	Castanheira, Mariana @@aut@@ Doyle, Timothy B. @@aut@@ Deshpande, Lalitagauri M. @@aut@@ Mendes, Rodrigo E. @@aut@@ Sader, Helio S. @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	32049781X
dewey-sort	3610
id	ELV00682627X
language_de	englisch
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author	Castanheira, Mariana
spellingShingle	Castanheira, Mariana ddc 610 ssgn 15,3 fid PHARM bkl 44.38 misc Carbapenem-resistant Enterobacterales misc CRE misc Non-carbapenemase-producing misc β-Lactam resistance mechanisms misc β-Lactam/β-lactamase inhibitor combinations Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
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topic_title	610 DE-600 15,3 ssgn PHARM DE-84 fid 44.38 bkl Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals Carbapenem-resistant Enterobacterales CRE Non-carbapenemase-producing β-Lactam resistance mechanisms β-Lactam/β-lactamase inhibitor combinations
topic	ddc 610 ssgn 15,3 fid PHARM bkl 44.38 misc Carbapenem-resistant Enterobacterales misc CRE misc Non-carbapenemase-producing misc β-Lactam resistance mechanisms misc β-Lactam/β-lactamase inhibitor combinations
topic_unstemmed	ddc 610 ssgn 15,3 fid PHARM bkl 44.38 misc Carbapenem-resistant Enterobacterales misc CRE misc Non-carbapenemase-producing misc β-Lactam resistance mechanisms misc β-Lactam/β-lactamase inhibitor combinations
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title	Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
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title_full	Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
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author_browse	Castanheira, Mariana Doyle, Timothy B. Deshpande, Lalitagauri M. Mendes, Rodrigo E. Sader, Helio S.
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title_sort	activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant enterobacterales isolates from us hospitals
title_auth	Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
abstract	We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species.
abstractGer	We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species.
abstract_unstemmed	We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. The resistance mechanisms among CRE isolates that did not produce carbapenemases are complex; β-lactam/β-lactamase inhibitor combinations might have different activity against these isolates depending on their resistance mechanisms and the bacterial species.
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title_short	Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals
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author2	Doyle, Timothy B. Deshpande, Lalitagauri M. Mendes, Rodrigo E. Sader, Helio S.
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doi_str	10.1016/j.ijantimicag.2021.106439
up_date	2024-07-06T22:40:48.815Z
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV00682627X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20231205154352.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230506s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.ijantimicag.2021.106439</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV00682627X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0924-8579(21)00720-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">610</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">15,3</subfield><subfield code="2">ssgn</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">PHARM</subfield><subfield code="q">DE-84</subfield><subfield code="2">fid</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">44.38</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Castanheira, Mariana</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0003-0126-1782</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We investigated the prevalence, resistance mechanisms and activity of ceftazidime/avibactam, meropenem/vaborbactam, imipenem/relebactam and comparator agents against carbapenem-resistant Enterobacterales (CRE) that did not carry carbapenemase genes. Among 304 CRE isolates collected in US hospitals during 2016–2018 (1.1% of the overall Enterobacterales), 45 (14.8%) isolates did not carry carbapenemases. These isolates were mainly Klebsiella aerogenes (n = 11), Enterobacter cloacae (n = 11) and Klebsiella pneumoniae (n = 10). Isolates harboured one to six β-lactam resistance mechanisms (median, three mechanisms). Acquired β-lactamase genes were detected in 21 isolates; bla CTX-M-15 was the most common acquired β-lactamase gene found (14 isolates). All 11 K. aerogenes and 6 E. cloacae isolates overexpressed AmpC. Only one isolate belonging to these species carried acquired β-lactamase genes. Disruptions or reduced expression of both outer membrane proteins (ompC/ompK36 and ompF/ompK35) were detected among 20 isolates. AcrAB–TolC was modestly expressed or overexpressed among 19 isolates from six species. One E. coli isolate produced a CTX-M-15 variant that displayed an increased meropenem minimum inhibitory concentration (MIC) when expressed in a clean background. Most β-lactam agents had limited activity against CRE isolates that did not carry carbapenemases. Ceftazidime/avibactam inhibited all isolates, while imipenem/relebactam and meropenem/vaborbactam inhibited 93.0% (88.9% if Proteus mirabilis is included) and 93.3% of tested isolates at current breakpoints. 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Activity of ceftazidime/avibactam, meropenem/vaborbactam and imipenem/relebactam against carbapenemase-negative carbapenem-resistant Enterobacterales isolates from US hospitals

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